the mitral and tricuspid valves
the ventricles
The circulatory system has a series of one-way valves built in which prevents blood flowing backwards.
bundle branches
atriums and ventricles are apart of the four parts of your heart ventricles are on the bottom and atrium's are on the top hope this helped =D
right and left atrium. they collect and hold blood before sending them into the ventricles where they are pumped to all parts of the body.right and left atrium. they collect and hold blood before sending them into the ventricles where they are pumped away from the heart.right and left atrium. they collect and hold blood before sending them into the ventricles where they are pumped to all parts of the body.
The right atrium and left atrium (plural atria) are the upper chambers of the heart. They are superior to the right and left ventricles, respectively.
ventricles
The four chambers are; Left atrium Right atrium Left Ventricle Right Ventricle The two upper chambers are called atria (singular: atrium) and the two lower chambers are called ventricles. There are four chambers of the heart - the right atrium, left atrium, right ventricle and left ventricle.
They are the atria (atrium singular). There are two. They are above the ventricles, and are smaller. Their job is to pump the blood to the ventricles. There is a left and a right atrium, and each pumps to their same-side ventricle. The term "auricle" was previously applied to an atrium, but now is used to identify a specific section of the chamber.
To prevent the back flow of blood into the left and right atrium when the ventricles contract
If I am not wrong the lower two chambers of the heart are called as ventricles i.e. left ventricle and right ventricle while the upper two chambers of the heart are called as atria( plural of atrium) i.e. left atrium and right atrium.
The two atria (right atrium and left atrium) of the heart travel (force blood) to the ventricles (right ventricle and left ventricle), respectively.